AD-1PRE+ is a high-end decoder supporting CD, SACD, MP3, WMA audio formats and USB-Audio, phono MM/MC, optical, coaxial connections. It adopts multi-chamber layout, balance circuit, DSD decoding and several high class chips to offer Hi-Fi sound effect. As a top 10 audio brand in China, Tonewinner has 30+ years experience in designing and manufacturing acoustic products. As an original supplier, Tonewinner always warmly welcomes distributors, partners and customers around the world.